Plunk
Open-source transactional email platform — self-hostable, $0.001/email, no contact limits.

Plunk is an open-source email platform that combines transactional emails, marketing campaigns, and workflow automation in a single self-hostable tool. It offers a visual builder for email sequences, unlimited contact storage, and AGPL-3.0 licensed code with GDPR compliance. Pricing is usage-based at $0.001 per email sent, positioning it as a low-cost alternative to Resend, SendGrid, Mailchimp, and others.
Plunk provides a unified platform with a visual workflow builder, unlimited contact storage, and pay-per-send pricing, deployable via Docker Compose or as a managed cloud service.
developers and founders building SaaS products or side projects
Background.
- Status
- launched
- Business model
- freemium
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